1,832 research outputs found
Urban and Peri-urban Agriculture in Kyiv (Ukraine): "Crisis Induced Strategy" versus Recreational Resource
No full textFor the study 240 Kyiv households with urban and peri-urban agriculture (UPA) have been surveyed in 2005. Quotas were assigned to four different types of plots. A standardized questionnaire was developed to collect data on crop and animal production, inputs, sales of produce for income, importance of the plot for self-sufficiency, recreation and leisure time. A factor analysis is employed to reduce attitudinal data. Based on factor scores a cluster analysis is conducted to segment the respondents into more homogeneous groups and to show multiple purposes of UPA. Four clusters labeled as “Seekers of leisure activities”, “UPA-dependent growers”, “Recreation-oriented growers” and “Little engaged growers” are created. Multiple purposes of UPA are shown by profiling the clusters due to demographic, socioeconomic and other selected characteristics. The results show that depending on the type of plot the importance of UPA shifts from livelihood necessity to recreational resource or combines both.Urban and peri-urban agriculture, livelihood, Ukraine, Farm Management,
Indicadores de risco para a peri-implantite
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2014.O objetivo deste estudo foi identificar os indicadores de risco sistêmicos e locais associados com a peri-implantite e sua prevalência. Os critérios de inclusão para o estudo compreenderam: pacientes tratados com implantes de titânio Implacil De Bortoli (São Paulo, Brasil) na Fundação para o Desenvolvimento Científico e Tecnológico da Odontologia (FUNDECTO), da Universidade de São Paulo (USP), no período de 1998 a 2012. Foram examinados 183 pacientes, reabilitados com 916 implantes em função por pelo menos 1 ano. As variáveis foram avaliadas segundo condição sistêmica do paciente, características do implante, coroa protética e parâmetros clínicos. A regressão logística não demonstrou associação de características do implante com a PI. Houve correlação estatística positiva para histórico de doença periodontal (DP), próteses cimentadas, presença de facetas de desgaste na coroa protética e próteses totais. A PI apresentou risco aumentado em 2.20 vezes para histórico de DP, 3.62 vezes para próteses cimentadas em relação às parafusadas, 2.43 vezes na presença de facetas de desgaste na coroa protética e 16.11 vezes para próteses totais em relação as parafusadas. Foram relacionados como indicadores de risco para a PI histórico de DP, próteses cimentadas, presença de facetas de desgaste na coroa protética e próteses totais. As características dos implantes não foram relacionadas com a PI.Abstract : The aim of this study was to identify systemic and local risk indicators associated with peri-implantitis (PI) and its prevalence. Inclusion criteria for the study were patients treated with osseointegrated implants (Implacil De Bortoli, Sao Paulo, Brazil) at FUNDECTO (University of Sao Paulo, USP), from 1998 to 2012. There were examined 183 patients, rehabilitated with 916 implants in function for 1 year at least. Variables were evaluated according to patient's systemic condition, implant's characteristics, prosthetic crown and clinical parameters. Logistic regression did not show any association between implant's characteristics with PI. Also, it was identified an increased risk of 2.20 times for historic of periodontal disease (PD), 3.62 times for cemented restorations compared to screw-retained, 2.43 times when displayed wear facets on the prosthetic crown and 16.11 times for total rehabilitations when compared to single rehabilitations. There were related as risk indicators for PI the historic of periodontal disease, cemented prostheses, presence of wear facets on the prosthetic crown and in total rehabilitations. Implants' characteristics were not related with PI
The composition and nutritional properties of extra-virgin olive oil
No full textChapter 3 gives basic information about the composition and nutritional properties of extra-virgin olive oil. As triglycerides make up 97 to 99% of extra-virgin olive oil, the main chemical-physical characteristics of the oil depend on the composition of the triglyceride moiety. However, the minor components give an invaluable contribution to sensory and health-promoting properties. It is mainly the presence of these components that differentiates extra-virgin olive oil from all other edible oils
Surface energetics and protein-protein interactions: analysis and mechanistic implications
No full textUnderstanding protein-protein interactions (PPI) at the molecular level
is a fundamental task in the design of new drugs, the prediction of
protein function and the clarification of the mechanisms of
(dis)regulation of biochemical pathways. In this study, we use a novel
computational approach to investigate the energetics of aminoacid
networks located on the surface of proteins, isolated and in complex
with their respective partners. Interestingly, the analysis of
individual proteins identifies patches of surface residues that, when
mapped on the structure of their respective complexes, reveal regions of
residue-pair couplings that extend across the binding interfaces,
forming continuous motifs. An enhanced effect is visible across the
proteins of the dataset forming larger quaternary assemblies. The method
indicates the presence of energetic signatures in the isolated proteins
that are retained in the bound form, which we hypothesize to determine
binding orientation upon complex formation. We propose our method,
BLUEPRINT, as a complement to different approaches ranging from the
ab-initio characterization of PPIs, to protein-protein docking
algorithms, for the physico-chemical and functional investigation of
protein-protein interactions
A influência da geometria do implante na perda óssea peri-implantar: um estudo de corte transversal em humanos
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2015.Objetivo: O objetivo deste estudo foi verificar a influência da geometria do implante na perda óssea peri-implantar. Materiais e métodos: Pacientes tratados com implantes de titânio Implacil De Bortoli (São Paulo, Brasil) na Fundação para o Desenvolvimento Científico e Tecnológico da Odontologia (FUNDECTO), da Universidade de São Paulo (USP), no período de 1998 a 2012 foram chamados para consulta de manutenção. Entre Abril a Novembro de 2013, foram examinados 183 pacientes reabilitados com 916 implantes em função por pelo menos um ano. A variável perda óssea marginal foi avaliada segundo o fator: tipo de implante (forma cilíndrica ou cônica e conexão hexagonal interna ou externa). Resultados: O teste t para médias de amostras independentes com variâncias desconhecidas mostrou perda óssea significante maior para os implantes cilíndricos quando se considera como ponto de referência coronal para aferir a perda óssea o topo do implante. Mas, quando se utiliza a base do colar liso como ponto de referência coronal para aferição, a situação se inverte e os implantes de forma cônica apresentam perda óssea significativamente maior. Conclusões: Todos os grupos de implantes estudados apresentaram baixos valores de perda óssea peri-implantar. A geometria do implante e o comprimento do colar liso têm significativa influência na perda óssea peri-implantar. Implantes cônicos, com micro espiras cervicais e menor comprimento de colar liso, mostraram menor perda óssea marginal.Abstract : Objective: The aim of this study was to investigate the influence of implant geometry in peri-implant bone loss. Materials and methods: From April to November 2013, there were examined 183 patients treated with osseointegrated implants (Implacil De Bortoli, Sao Paulo, Brazil) performed at FUNDECTO (University of Sao Paulo - USP) from 1998 to 2012, rehabilitated with 916 implants in function for 1 year at least. The variable marginal bone loss was assessed according to the factor type of implant (cylindrical or conical shape and internal or external hexagonal connection). Results: The t test for means of independent samples with unknown variance showed significant greater bone loss for cylindrical implants when considering the top of the implant as coronal reference point to measure bone loss the. But, when the base of smooth neck was used as a coronal reference point for measuring the conical implants have significantly higher bone loss. Conclusions: All studied implant groups had low peri-implant bone loss values. The implant geometry and the smooth neck length significantly influence peri-implant bone loss. Tapered implants with shorter smooth neck length and cervical micro threads had lower marginal bone loss
Economic Appraisal of Profitability and Sustainability of Peri-Urban Agriculture in Bangkok
No full textPromoters of urban and peri-urban agriculture generally stress its positive role in terms of food security, income, employment and improvement of the urban environment. Unfortunately, competition with agricultural and non-agricultural uses of peri-urban farm land often translates into intensive farming systems that are detrimental to the environment. Based on two original surveys of peri-urban farms in the area of Bangok, this paper ranks four cropping systems (fish, shrimp, rice, and fruits) according to their economic profitability. A second step of the analysis aims at taking into account the cost of water into the analysis, so as to assess whether the hierarchy formerly established is modified. Although all environmental costs are not introduced and environmental benefits are ignored, this work paves the way for further research in the area of taking into account the environmental impact of farming activities. ...French Abstract : Les tenants de l'agriculture urbaine et péri-urbaine invoquent généralement son rôle positif en termes de sécurité alimentaire, de génération d'emplois et de revenus et d'amélioration de l'environnement urbain. Toutefois, la concurrence entre usages agricoles et non agricoles de la terre en zone péri-urbaine est malheureusement souvent à l'origine de systèmes agricoles intensifs préjudiciables à l'environnement. A partir de deux enquêtes effectuées dans des exploitations de la zone péri-urbaine de Bangkok, cet article tente de classer quatre systèmes productifs (aquaculture, pisciculture, riziculture et arboriculture fruitière) en fonction de leur rentabilité économique. Dans une seconde partie, nous cherchons à évaluer dans quelle mesure l'introduction du coût de l'eau (l'eau propre étant paradoxalement une ressource rare à Bangkok) dans l'analyse économique de la rentabilité des activités modifie la hiérarchie précédemment établie. Bien qu'imparfait (tous les coûts environnementaux ne sont pas inclus et d'éventuels bénéfices environnementaux sont ignorés), cet article constitue une tentative de prise en compte de l'impact environnemental dans les l'analyse économique des activités agricoles.ENVIRONMENTAL ECONOMICS; PERI-URBAN AGRICULTURE; ASIA; THAILAND
Extra virgin olive oil packaging
No full textThe packaging process is described as a sequence of operations from the purchase order to shipment of the product to the customer. The characteristics and performance of glass, metal and plastic containers in the packaging of extra-virgin olive oil are presented and compared in terms of cost, protection from light and oxygen, possibility of recycling and reuse, mechanical resistance and inertness. Various filling and closing techniques are described. Finally, the limitations and possibilities of labelling are discussed
Structure and Computation in Immunoreagent Design : From Diagnostics to Vaccines
No full textNovel immunological tools for efficient diagnosis and treatment of emerging infections are urgently required. Advances in the diagnostic and vaccine development fields are continuously progressing, with reverse vaccinology and structural vaccinology (SV) methods for antigen identification and structure-based antigen (re)design playing increasingly relevant roles. SV, in particular, is predicted to be the front-runner in the future development of diagnostics and vaccines targeting challenging diseases such as AIDS and cancer. We review state-of-the-art methodologies for structure-based epitope identification and antigen design, with specific applicative examples. We highlight the implications of such methods for the engineering of biomolecules with improved immunological properties, potential diagnostic and/or therapeutic uses, and discuss the perspectives of structure-based rational design for the production of advanced immunoreagents. Immunodiagnostic-based serological tests offer rapid and high-throughput diagnosis of multiple pathogens and can ascertain disease progression.3D structures of protein antigens can be used to predict epitope location using computational biology methods.Computationally designed synthetic epitopes can provide new chemical tools with distinct applications, from diagnosis and patient profiling to therapeutic approaches based on new vaccines.Structure-based antigen design is predicted to deliver future vaccines targeting challenging diseases such as HIV and cancer.As an alternative to nanoparticle epitope presentation systems, structure-based in silico epitope grafting and design methods may be adopted to transplant epitopes onto protein scaffolds to generate antigens that stimulate more potent immune responses
Vittorio Peri, "Scriptor Graecus" della Biblioteca Apostolica Vaticana e storico
No full textBiografia intellettuale di Vittorio Peri e rassegna dei suoi scritti sul Patriarcato d'Aquileia e l'area friulan
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